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malic
C++
#include <cstdio>    char calender[366];  int main(void)  {  	int N,b,e;  	scanf("%d",&N);  	while(N--)  	{  		scanf("%d%d",&b,&e);  		for(int i=b;i<=e;i++)  		{  			calender[i]=1;  		}  	}  	int ret = 0;  	for(int i=1;i<=365;i++)  	{  		ret+=calender[i];  	}  	printf("%d n",ret);  	return 0;  }

con01 pA

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